body{
    overflow: hidden;
}
.layui-nav-side {
position: fixed;
top: 59px;
bottom: 0;
left: 0;
overflow-x: hidden;
z-index: 999;
}
.layui-nav:nth-child(1){
position: relative;
background-color: #393D49;
color: #fff;
border-radius: 2px;
font-size: 0;
}
.span{
padding-right: 35px;
font-size: 18px;
}
.last{
  margin-left:543px;
}
.nav{
  margin-right:500px;
}
.navs{
  cursor: pointer;
  height: 40px;
  text-align: center;
  line-height: 40px;
  border-bottom:1px solid #ccc;
}
.tabs{
  margin-left:200px;
  margin-top:0;
}
a{
  text-decoration: none;
  text-align: center;
}
.content{
  padding:20px;
}
.icon{
  margin-right: 5px;
}
.layui-form-label{
  line-height: 30px;
}
.layui-form-item .layui-input-inline{
 width: 265px;
}
.inputs{
  width: 97%;
}
.layui-nav .layui-nav-item{
 margin-right: 70px;
}